mysql在命令行中，指定要連接的數據庫？

需求描述：

　　mysql客戶端，可以在登錄到mysql數據庫時，指定要連接到哪個數據庫

　　這里進行一個測試。

測試過程：

1.mysql通過-D參數指定連接到test數據庫

[mysql@redhat6 scripts]$ mysql -uroot -p -D test
Enter password: 
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[mysql@redhat6 scripts]$ mysql -uroot -p -D test
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 14
Server version: 5.5.57-log MySQL Community Server (GPL)

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> select database();
+------------+
| database() |
+------------+
| test       |
+------------+
1 row in set (0.00 sec)

備注：通過在-D參數后面指定數據庫名字，就連接到了test數據庫。

2.通過-D參數，連接到test01數據庫

[mysql@redhat6 scripts]$ mysql -uroot -p -D test01
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 15
Server version: 5.5.57-log MySQL Community Server (GPL)

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> select database();
+------------+
| database() |
+------------+
| test01     |
+------------+
1 row in set (0.00 sec)

mysql> 

備注：通過在-D參數后面指定數據庫名字，就連接到了test01數據庫。

 

小結：通過-D 參數指明要直接連接到哪個數據庫。

 

文檔創建時間：2018年3月20日11:37:27